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Marine Resource Bulletin Vol. 39, No. 3, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

IN THIS ISSUE

Cobia Research Helps Aquaculture 2

Cobia (Rachycentron canadum, L.) have many characteristics that make them a promising species for aquaculture production. However, there are a few obstacles to be overcome before mass production takes off. Virginia Sea Grant is funding research on larval morphology in cobia that may help develop commercial feed and improve survivability of larval cobia.

Reality Science 5

The Global Ocean Observing System (GOOS) is a network of observing platforms that measure and collect data on the state of the oceans. The wealth of data collected by GOOS is available not only to scientists …

Marine Resource Bulletin Vol. 39, No. 2, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

In This Issue

The Fish that Saved Jamestown 2

This year, America celebrated the 400th anniversary of the founding of Jamestown. However, one crucial player in the Jamestown story may have been forgotten amid all the festivities - the Atlantic sturgeon - the "fish that saved Jamestown." Erin Seiling pulls together historic artifacts and notes that detail how important the species was to the colony.

State of the Sturgeon 6

As a species, Atlantic sturgeon are millions of years old, but much is still unknown about these ancient fish. Researchers at Virginia Sea Grant and the Virginia Institute of Marine …

Improvement And Evaluation Of Greenlip Abalone Hatchery And Nursery Production. Final Frdc Report - Project 2003/203, Sabine Daume

Fisheries research contract reports

A range of experiments aimed at optimizing broodstock performance and nursery culture of greenlip abalone (Haliotis laevigata) were undertaken in Western Australia. Factors investigated that can potentially influence broodstock performance were natal source (wild-caught or farm-grown) and broodstock diets (red algal diet or formulated diet varying in levels of an important fatty acid). Wild-caught broodstock, feeding mainly on a red seaweed diet, produced eggs with higher concentrations of an important fatty acid, arachidonic acid, whereas farm-grown broodstock, feeding on a commercial formulated diet, altered the concentration of fatty acids of the eggs. Feeding farm-grown broodstock natural diets like …

Identification And Control Of Pest Slugs And Snails For Broadacre Crops In Western Australia, Svetlana Micic, Ken Henry, Paul Horne

Bulletins 4000 -

The numbers of slugs and snails have increased in broadacre cropping in Western Australia with the use of minimum tillage and stubble-retention practices. The organic content of paddocks increases under such systems, providing an increased food source especially to young slugs and snails. Soil moisture content is greater over summer leading to higher survival levels of slugs and snails.

Slug and snail pests in Australia have come from other countries, mainly the Mediterranean region. They damage plant seeds (mainly legumes), recently germinated seeds, seedlings and leaves and can be a contaminant of grain at harvest.

Marine Resource Bulletin Vol. 39, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

IN THIS ISSUE

Working Waterways and Waterfronts 2007 2

Conference announcement from Virginia Sea Grant.

A Tale of Three Cities 3

Waterfront access is an issue that affects waterfront users, both large and small. This article highlights struggles three of the nation's largest commercial fishing communities- Gloucester, Massachusetts, Fulton's Fish Market in New York and Fisherman's Wharf in San Francisco - have faced in recent years. Each story provides insight in coping with diminishing waterfront access that may be applied to our own local communities.

Coastal Culture and its Change of Character 7

New development along the Eastern Shore threatens …

Improved Performance Of Marron Using Genetic And Pond On Using Genetic And Pond Management Strategies, Craig Lawrence Dr

Fisheries research contract reports

Marron (Cherax tenuimanus) are the highest valued freshwater crayfish farmed in Australia. This project addressed the need to increase the profitability of commercial marron farms by improving growth rates and pond management strategies.

Improved Performance Of Marron Using Genetic And Pond Management Strategies, Craig Lawrence

(Fisheries) research contract reports

Marron (Cherax cainii) are the highest valued freshwater crayfish farmed in Australia. This project addressed the need to increase the profitability of commercial marron farms by improving growth rates and pond management strategies.

Returns To R&D Investment Of Dafwa: Benefit Cost Analysis, 2005-2006, Nazrul Islam

Bulletins 4000 -

The primary outcome or objective of the projects that are assessed, is to increase the market competitiveness and profitability of agri-industry.

Returns To Research And Development Investment Of The Department Of Agriculture And Food Western Australia : Benefit Cost Analysis, 2006-2007, Peter Coyle, Editor, Roslyn Blanchard, Francis Bright, Paul Mattingley, Manju Radhakrishnan

Bulletins 4000 -

Strategic decision making is enhanced by the consideration of benefit cost analyses of many projects. Each year a selection of projects is evaluated to assist in the determination of the most appropriate allocation of funds. This is only one of the methods that are employed by the Department’s Executive to increase market competitiveness and profitability in agriculture and the pastoral industries. This report includes both ex post and ex ante analyses, as they are complementary processes.

Root Lesion And Burrowing Nematodes In Western Australian Cropping Systems, Vivien Vanstone

Bulletins 4000 -

Nematodes are common soil pests that feed on the roots of a wide range of crop plants in all agricultural areas of Western Australia, irrespective of soil type and rainfall. Nematodes multiply on susceptible hosts. Consequently, as nematode populations increase, crop production is limited. Cereal yield losses due to nematodes in Western Australia are in the order of 5 to 15 per cent per annum, but individual losses as high as 40 per cent have been recorded.

The State Of The Animals Iv: 2007, Deborah J. Salem, Andrew N. Rowan

In the fourth volume of the State of the Animals series, a stellar array of researchers, scholars, and leaders in the field explores current and emerging issues in animal protection.

Feed On Offer Photo Gallery : For Annual Pastures During The Green Period, Mandy (Catherine Amanda) Curnow, Lifetimewool (Australia)

Books & book chapters

Food on Offer, or FOO, is the amount of pasture available for sheep to eat. It is measured as dry matter per hectare, and then used to budget feed available and stocking rates for a given period.

FOO includes all green material above the ground and it is reported in kilograms of dry matter per hectare (kg DM/ha).